On Sun, 2018-01-07 at 15:09 +0000, Lu, Hongjiu wrote:
> Sure, I can use __x86_indirect_thunk_rax.

Great, thanks.

I've made that change on top of your 20171219 patch set which is the
latest I've seen, and pushed it to my tree at
http://git.infradead.org/users/dwmw2/gcc-retpoline.git/shortlog/refs/heads/retpoline-20180107

I assume you'll want to redo those patches so that it's
__x86_indirect_thunk_rax from the start, rather than starting with dots
and then changing it, but I'll let you deal with that and push it
upstream. Building compiler now, and then I'll update and simplify the
kernel patches accordingly.